Many kangaroo rats live in the Sonoran Desert of the southwestern United States. They have a variety of adaptations for living in the desert. Under which circumstance would the kangaroo rats of the Sonoran Desert be MOST LIKELY to develop new adaptations by natural selection?

The observations of hooke and van leeuwenhoek documenting the existence of microscopic cells formed the basis of what important theory? a. the cell theory stating that all living things are composed of cellsb. the theory of spontaneous generation, which held that life forms could arise spontaneouslyc. the theory of chemotherapy, or use of antimicrobials to destroy pathogenic organismsd. the germ theory of disease and causative agents

Ture or false evidence for evolution includes millions of fossils

Moving down the ramp from 6 meters to